Carbureter for gasolene-engines.



No. 848,425. PATENTED MAR. 26, 1907.

L. ANDERSON. GARBURETER FOR GASOLBNE ENGINES APPLICATION FILED AUG. 13,1906.

2 SHEETS-SHEET 1.

PATENTED MAR. 26, 1907.

L. ANDERSON. GARBURETER FOR GASOLENE ENGINES.

APPLICATION FILED AUG. 13, 1906.

2 SHEETS-SHEET 2.

LAURITZ ANDERSON, on QUINCY, ILLINOIS.

Specification of Letters Patent. Application filed August 13,;1906.Serial No. 330,426.

CARBURETER FOR GASOLENE-ENGINES'Q I Patented March 26,1907;

- To (all wlwm it may concern:

Be it known that I, LA'unrrz ANDERson, a

citizen of the United States, and a resident of Quincy, inlthe county ofAdams and State of Illinois, have invented certain new and use fulImprovements in Carburetors foiGiisolenc-Engines, of which thefollowing, when taken in connection with tl 1c drawings accompanying andforming; apart hereof, is a full and com lets-description, sufficient toenable those ski led in the art to which it pertains to understand,make, and use the same.

This invention relates to earburetersoi the valve t e incontradistinction to those rovided with afloat. v

The object of this invent ion-is to obtain a carburetor by means ofwhichthe relative andv actualquantity or I volume of air and gasolenevapor supplied to the engine ormo: tor to which it is attached may bemechanic.- ally controlled to produce an explosive compound wherein thecombustion will be practically complete, whether such engine or motor berun at high or low speed and under a light or lie-av load. r

A further ob ect of the niventlon is to obtam a carbureter ofthe"character named. which when used on a marine engine will ob-. tamimmediate sto )pmg of the same when such carbureter is c oscd. a

In the drawings referredto as illustrating a construction embodying thisinvention, Fig ure 1 is it top 'view of the earbureter. Fig. 2 is avertical sectional view of the carburetor, and Fig. 3 is-a bottom viewof the carburetor. Fig. 41s a bottom view of the vertical cylinder ofcasin A of the carburetor with the,

movable dis thereof removed therefrom to show the stationaryperforated-air-disk of 4 j tionary (LIP-(113k of the apparatus. .F1g6-1s the apparatus. Fig} 5 is a view of the staa-view of themovableair-disk of the ap aratus; Fi 7 is-a bottom plan view 0 a movable-liever "and of the inclinedtable,

thereon; and"Fig.'8?i s a rear. elevation of the movable lever andinclined table on the un der side th ereof ,-fonning apart of the appa:ratus.

. A .refereneedetter {applied to desi 'nate a given is used to indicatesue part throng qutthe several figilres-of thedrawlngs wherever the samea )pears; H r

In Fig. 3 broken lines indicate the several parts opened to theirfullest extent, and the B is the gasoleneeinlet of the carburcter.

tlon.

full lines ilh'istrate ,such part in a closed posi A is the shell orcasing of the carbureter,

and a is the removable top of the casing. Casing Ais provided withscrew-threads at the discharge end of the air-discharge assage from thecarburetor, by means of w ichv the casing is attached to th'e'pipecommune eating with the-inlet porter ports of a gasolene-enginej C isthe main chamber in easing A, andC-C is an auxiliary chamberforining'a-passa e-.:

chalnber'C and -1s hereinafter referred to as v u Y the alrpassage-way Dis a nee'dle valveicoaeting its valve-- seat to control the admission ofgasolene to ,inlet B. Needle-valve D is provided: with .wayfromthe-air-ihlet of the'earbureterto t e 7 screw-threads on the stem (1thereof and-with,

the handle E, whicli is.attacl1ed to the-upper end of stem (1,. f HandleE is preferablvpm" videdwith asplit' c'inthe hub thereof andv with.tightening-screw e, by means of which such handle may be secured inadetermined- .position-on'stcm d. Handle E. is also pro-" vided withaperture (1".

F is a handle to stem 11, by means of which such stem ma be turnedindependently of the turning o the handle E. .Handle F is provided forthe purpose of-adju sting thevpo sition of the valve relative tb itsseat to correspond with the re uirernents of the en gine-to which thecar ureter is attaeh'ed,- such re uirement bemgcontrolled, so far as.this'car ureter is concerned, b the bore of a valve-seat which is heaton the inner end of the alsolene inlet B. Needle-valve G 00115 airpassage-wav C.-

" the stem of valve G. 5':

the cylinder or cylinders oft 6 engine to- 'whichthe ap iaratus isattached.

G is a use le-valve arranged to coact with 'trolst e discharge ofgasolene from inlet B'to s a boss on removabletop-a, such'bossbeingprovided with a'hole" thorethrough,

through which the stem 9 of valve G extends and in" which it is Ionitudinally movable. The operation of the cax b v I ed by ithe removablefeature of the top, a, suehtop being made removable merely to providemeans to obtain access to the interioi' of-the casing when desired. 1

-I is a disk rigidly secured on stem 0 in such ureter'is'not affect 1toom be a 1 for til? dskl:

When the isk k is thus adjusted fora given v engine, its positionremains unchanged, and at such time whenthe disk L is turned to thelocation as to be positionedin air passageway '0 and substantially closesuch air sage-way when valve G is seated.

J is a spring yieldinglyholding valve G on i'tsseat.

K K K are apertures in disk k, and Z Z are a ertures in disk L.. Disk Lis mounted on t e belt, or screw 11 to turn thereon, and

mechanisms are provided, which are herein thereof (L) is turned on itspivot Z, thereby varyliig the o ning of the air-inlet. i 1 The air-i etmust be partially opened Whenever the engine to whichth'e carburetor isattached is in motion, and the 'largerthe bore of the cylinders thereofthe greater will be the area ofthe air-inlet when the engine is runningat its lowest possible speed, and to 7provide for the variation 1construct the disk so as to fit closely into the casing A at the lowerend of the air passa e-way C and provideithe projection on disk It andrecess 1 in casing A, so that a chisel or other suitable plied'to theprojection 7c to around to a set position.

position most nearly closing the air-inlet the engine Wlll run at itslowest rate. of speed.

. M is a rod'rriounted in the shell or casing A, so that a rotatingmovement maybe given thereto. Rod M extends through the dish is 21.

rottling valve or fly secured on red M to turn therewith, and thereby tovary the area of such assage-way. A portion of the fly or valve 1, iscut away, as atn, Fig. 2, so that 4 placing the tightenipg screw pthri'iugh such' b. r A l when ghe rod M is turned to throttle-the eng neo carbureter to the fullest'extent some air or some of the mixture of anand'gasolene bzapor may flow through the carbureter.

and into the engine.

0 is a spring one end whereof is attached to top a, as at O, and theother end whereof is attached to arm' or lever P, as at O. The arm orlever P is-rigidlysecured onrod M, so that the turning of suchlever'will turn the rod. The manner'of securing this levcrl to the'rodM, which I prefer to employ, is by producing the out p in the-hub ofsuch lever and The lever P is prlivide'd with a table Q on the underside thereof. Table Q is not i-nahorizontal planetl-iat is,-it is not ina plane at r ght angles to the axis of the vertical rod Mand hencewherithe disk on stem 9 is raised by the ls-w of air through the air-pasepassage-way a" from chamber C, and N sage C" into chamber C, therebyraising the stem g,- the extent of the raising of such stem isdetermined by the position of lever P as the upper end of the stem 9 (orplu g in such stem) is rought into contact wi l1 such table Q,

The the rotation of the vertical rod M as such rod is turned by means ofmechanism hereinafter described, it follows that both the quantity ofgasolene discharged from passa e-way B by the unseating of the valve Gand the volume' of air flowin through the passage-way play of the disk Ibeing controlled by C are correspomingly varied-, so that the R is astop on the under side of the lever at the end of the table'Q. 1 isa-set-screw which may be so arranged or set,that' the stop R is overtheupper end of the stem'g of a valve G when the valve N is in positionnearly closing the dischargeepassage-of the,

carbureter, and such set-screw r is so set rine engine. upper end ofstem 9 or to the plug g in such -when the apparatus is to be used on ama- The stopR is so close to the stern when such stop is adjusted to beover I the stem that upward-movement thereof to any apgreciable extentcannot occur and the va ve cannot be-unseated; By this an rangementsudden stopping of the engine is obtained. v

When the apparatus is puton-an automobile-engine, the sct screw r issetso that when the discharge passage-way a is most nearly closed by valveN the stop R- is not-over: the

upper end of stem 9, and hence sufficient vertical movement is permittedin suehs'tei'n to allow the valve G to unseat, so that enough gasolenewill be discharged from inlet B to cause the engine to be kept alive, asitis termed. i 1.

- T is a lever rigidly secured to the vertical rod M, as by split tandtightening-screw, I,

in hub t, and U U are teeth at one end ofthe lever 'l, arran ed tointermesh with teeth-u "on disk L.

'Fhe turning ofgrod :M is thus made to turn the disk L.

V is a connection between levers .E and l. \V is awirc coming under thedisk I atthc inner end of such wire, by mcansof which-the valve may beraised ofl its seat when lover I is turned to open the carburetor forthe flow thercthrough of aira'nd 'asolene vapor.

' W ire W maybe used to quickly obtain a suppassage way C '1 ply ofgasolene in the air when desired to start the "engine.

Mei-.l'lanism to actuate the apparatus' nay I be attached to lever E, asby booking it into apertiire c", or to lover I by hooking it into eitherone of the aperturcsp".' a. I 1

I The operation of this carburetor is as follows: 'lhc necdle-valve l)is assmncd' to'havc been set at. the proper place for the engine towhich the carbureter is attached bytur'ning 'the stein cl by means ofhandle F, and to have been secured after such adjustment firmlv 5 tolever E by means of the tightening-screii e. Thedisk 7c is also assumedto have been set at the proper place in the. casing A so that when thedisk L is turned to close the air-inlet formed by apertures K and ltothe 10 smallest possible point of closing the proper volume of air willflow through the air passage-way G into the'chamber 0. As herein--beiore stated, this setting ofthe needle-valve- D- and disk It is variedfor difi'erent'engines :5 with reference to the size of bore of thecylinders, and when once this setting or adjusting is accomplished for agiven engine it remains unchanged.

The adjustment of the gasolene-inlet valve 201) and of the air-inlethaving been made, the

throttle of the carburetor may be opened to its widest extent by-turningthe vertical rod M so that the fly or valve N lies in a vertical planewhich extends through the longitudi- 2 nal axis of the disehar e-passageof the car several movable parts ofjthe 'ap )aratus is si-L multaneouslyobtained, as such parts are tied together inthe manner hereinbefore described, "and that thereby-aft er'the engine is started the movement ofthe rod' ivill cause 7%: i

a corresponding and measured movcmentjot,

such' movableparts'aridthat thereby thereli ative quantity of gasoleiieand volume of, ..air.

are directly and'properly eontrolled%thatis,i I the 'quantity'ofga'solene' is inereasedavhen'; 5

the volume of air is increased, and the quan-ytity of gasolene isdecreased \yhenfthe *vo f ume of air.-'i's'decr'eased'so thatthe exp 05sive mixture delivered to the ongiue'from'or i v by this 'carbureteris-atall'tim'es a mixture'of 8b which practically perfect combustion is;'ob- =1 tained. Great econoinyiin 'the use of. gaso A lene, with nosmoke and 'iio-earbo are btainedthereby', and iby ma great"adjustability of the se 'ver' ,the' mechanicaljinove bureten Byturning, t e vertical rod M the handle E, which isattached .to lever Pby connection V, and the disk L, which is con-- neoted'to such verticalrod M by means of 30 the'lever T and intermeshing teeth U and u,

are also turned, so that valve D and the airinlets through disks k and Lare openedto their widest extent, and at the same time the table Q on'lever P is turned to nermit the 3 5 widestpossible unscatim ofneedle-valve G,

(the greatestpossibl longitudinal move ment to stem 17.) v v The fourlast above-describedoperations, having been performedto wit, valve jNjIf 40 opened to its widest extent, valve D opened to lts widest extent,the air-inlets formed b1};

the passage -ways through disk kiand disk being openedto their widestextent, and the table Q moved so that the stem 9 of valveG 5 may opento-its widest extent-the crank shaft of the en me to which thecarburet'er is" attached may e turned to crank the'en-w gine in theusual way. The movement ofthe piston of the engine will produces.differ.

5o ence in pressure on the inlet and discharge ends of the carburetenand therebycausea flow of air through the airinlet s'and throughassage-way O into.

the auxiliary chamber or the chamber C,- and such ow ofairwillraise 5 5the disk I against the "resilience of spring J,

and thereby unseat valve G and induce a flow or permit a flow ofgasolene from the inlet B f I p v i ai j disch g a mixture of air andgasolene va or will be so thus obtained in chamberC, an suchmix' turewill flow therefrom into the cylinders .of'

the engine. to be there com ressed, exploded,

and exhausted in the usua way.

It will be seen that by the turning. ofther 6 5' vertical rod M acorresponding turning of the into the auxiliary chamber or passage Cf,and

-. the of? ir fmentpftlie-remaimng 'ment; of the'va'lve ga olene-inlet;-as WWW-8 passage-wiay t su 'tantia when jth'e' 'valvefi seated-1 valv'elichen moved 1 tiallyl'asjdescribed.

2. lnfacarburtorf a ea sing iig'th daisies-113% l a chamber therein andwith an air passagethechamber', and a movablemember tothe air-inlet,scombinatien with a movable valve-coact'ing- 'witl1 a valve-seat tocontrol the admls'sion of a'solene-to the; ga'soleneinlet means to adust the valve relative to its seat and .means to move such adjusted,valvefro'm and back to its adjusted position,

a valve coacting with a valve-seat to control the discharge *end of thegasolene-inlet, adjustablemeans to limit the movement of. the

' valve at the dischar .e end oft-he gasolene inlet, a disk secure tothe stain of such valve, suchodisk positioned in the air passagewaytothe chamber to substantially close,

the same when they valve issated and to unseat such-valve 'wl 'ehmove'dby the ilowbf 8,1? through-"such air passage-way into the chamber, meansto throttle the discharge passage-way from the-chamber in the'casi I andmeans to; move the movable member 0 the; air-inlet, and connectionbetween the means to move the'valve Controlling the admission ofgasolen'e to thegasolene-inletfrorn' and-hack toits adjusted .osition,the means.

to-l imit the movement 0 the valve control 1 lingthe discharge-ofgasolene iron? the gaso lene'inlet the; 'means to throttle the discharge passage-.wayjandthe movable meme beraof: the air-inlet so thatmovement of-ione thereof will produce c'orresponding'move- .mentoftheremaining ones thereof; suhstan- V disk positioned in theair'passage-way to the tially1aS,,described-.

- -3;' Int; carbureter, acasing provided with a' chamber therein, andwith an air passagewaytothechamber and a passage-way from the chamber;vand provided with anvair-inlet 1 communicating with the chamber throughsuch air passage-tvay, a movable member to theair-inlet-andprovided witha gasoleneinletfthe-diseharge end whereof communicates with the :airpassage-wavfln combination -with a. movable valve coasting with avalve-,seattocohtrol the admission of ga'sg's lane to thegasolene-inlot, means to adjust tho-valve i'olativeto its seat andmeansto move such adjusted valve from and'b'ack to its-adjusted position, avalve enacting witha valve seat toeontrol the discl-ia'rge of gasolenefrom tho discharge end of the gasoleneinlot,3a disk socured'to the steinof such valve, such disk positioned in the air passage-way vway to thechamber,- and provided with a. gasolene-inlet the .'discharge endwhereof 8o to substantially close the same whenthevalve is seated and tounseat such valvewhen moved by the-flow of air through such air passa'e-way into the chamber, means to restrict It 'e air-discharge pas'sae-way from the chamber and connections ietween'the mechanism by means ofwhich the valvewhich controls-toe admission oflgasoleneto thegasolene-inlet is moved from and back to its adjusted position, thevalve restricting the air-discharge passageway and the'mov-' able'memberflo'f the air-inlct'so that movement of one thereof will' 'produce corresponding movement of the remainder thereof;sub-

stantially as described. 4. In -a carburetor, acasing provided with achamber therein andwith an-air passage 7 5 wayto the chamber and adischarge assagewayfrom such chamber, and provi ed with an inletcommunicating with the-air passage communicates with-the air passagewayto' the/chamber, a-mov-able-vmember to the-.airinlet, a movable valv eenact-mg with a. valve:

seat-to control the admission oi gasoleneto the gasolene-inlet, andmeans-to adjust the valve relative to its seat and means to move such'adjusted va'lve from and b'ackto'its-ad justedpos'ition ,1 incombination with a valve coacting'wi'th-a vufw e eatto control thedischarge end.- of the *gasolene-inlet, a movable o rod, aleve'r-onthe'rod, a. table on the under.- sideofithe 'leverfsnch table-in aplaneat'an angle to a plane at right angles to the axis 'of the, rod, tolimit the movement of the valve at the discharge end of'the'gasolene-inlet, a 5 disk secured to thestem of such valve, such chamberto substantially close the same y when the valve is seated .and tounseat such valve when moved by the flow ofair through ice such airpassage-way into the chamber; a -valve on the verticalrod to throttlethe discharge passage way from the chamber in the-- easing,;a-connectionbetween the vertical rod and the movable member hi the air -inlet, and

a connection between the means to moveithe valve controlling theadmission of gasolene to thegasolcne-inlet from and'hack tolits ad'-justed position and the movable rod so that movement of one thereof willproduce'coI-re- 1'm spending movement to the remainder sub stantially asdescribed; v 'LAURITZANDERSON. In presencei'of" .-j CoaA.A. AnAMs,CnAnLEs- TURNER BROWN,

